GMAX Youth Helmets

Size

Head Circumference (in)

Head Circumference (cm)

Hat Size

S

19-5/16 - 19-11/16

49 - 50

6-1/8 - 6-1/4

M

20-1/16 - 20-7/16

51 - 52

6-3/8 - 6-1/2

L

20-7/8 - 21-1/4

53 - 54

6-5/8 - 6-3/4

General Sizing information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.

Head Circumference

With tape level, measure the circumference of your head 1 inch above eyebrows and across the largest portion of the back of your head.